ApplicationNo. 777640 filed on 09/19/1985
US Classes:351/47, Removable and/or adjustable filters or screens (e.g., clip-on type)351/57With auxiliary lenses movable in and out of the optical path (e.g., clip-on type attachments)
ExaminersPrimary: Dzierzynski, Paul M.
Attorney, Agent or Firm
International ClassG02C 009/00
AbstractThe present disclosure is directed to optical accessories of the sunshade type which releasably cooperate with a frame of prescription glasses. The accessory has a pair of rearwardly projecting flexibly resilient prongs which when seated in respective grooves formed in inwardly facing portions of the frame to effect a snap-fit engagement of the accessory to the glasses.